Lee Majors and Lindsay Wagner are reunited as Steve Austin and Jaime Somers, powerful arch-enemies of crime and espionage, in "The Return of the Six Million Dollar Man and the Bionic Woman," NBC's made-for-TV action/ adventure movie, airing at 9 tonight on Channels 4 and 10.

And while their fans will applaud the renewal of the love affair between two badly injured humans who were restored bionically, perhaps it will be the reappearance of Richard Anderson, who played the mentor for both Wagner and Majors, and Martin E. Brooks as an Office of Strategic Information physician, which will add a stirring addition to the updated film version of their long- running TV series.

Anderson reprises his key role as Oscar Goldman, topside OSI supervisor who worked with both Majors and Wagner on their dual and separate operations, and Brooks is Dr. Rudy Wells, the specialist in bionic medicine who watched over their physical well being. Those castings gave Anderson and Brooks the dubious distinction of being perhaps the only actors ever to play the same roles simultaneously on two different TV networks -- in this case ABC and NBC during the 1977-78 season.

"The Six Million Dollar Man," which began in 1973 as an ABC Suspense Movie, became a weekly series the following year, and ran until March, 1978 on that network. Majors played an American astronaut who was severly injured in a training mishap, and whose body was rebuilt -- two bionic legs, a bionic arm and a bionic eye -- at a cost of $6 million.

"The Bionic Woman," a 1976 spin-off after Wagner appeared in various episodes of the parent series, ran for a year before being dropped by ABC, then was picked up by NBC for the full season of 1977-78. TV newcomer Wagner -- who won an Emmy for her role -- operated under the guise of an Air Force base schoolteacher and onetime sky-diver who also was badly injured and was also rebuilt -- bionic legs, a bionic right arm, a bionic ear. And her series producers even came up with a bionic dog, Maximillian, the German shepherd.

"I wasn't in very good shape when I started as Jaime Somers," Wagner recalled 10 years after her award-winning portrayal. "But I did about half my own stunt work. By the time the show was off the air I was in very good shape. You'd be surprised how many men asked me to arm wrestle."

"This TV movie is a bit different from most episodes of 'The Bionic Woman,' "she continued. "Jaime is now a well-established rehabilitation therapist who must deal with meeting the former love of her life, Steve Austin, a man who, up to now she has blamed for a friend's death."

In tonight's tale Austin and Somers join forces to oppose a radical organization which plots to take over the US. The odd-ball leader, Charles Stenning, played by Martin Landau, plans to use Austin's son, Michael, as a hostage and his trump card against his bionic foes.

Not only are the two stars reunited after a long separation -- Somers still nursing the suspicion that Austin caused the death of her friend -- but the plot also allows Austin to renew the relationship with his son, played by Tom Schanley. And Majors' real-life son, Lee Majors II, plays Jim Castillian, the brash, young aide to OSI chief Goldman.

Schanley's portrayal of the young Austin, who -- like his dad -- was rebuilt after a disastrous plane crash, is perhaps the most-delicate casting role for the film. A sensitive young man, he regards his mechanical restoration as freakish, until he realizes that his super powers can be utilized to help people.

Also in the cast are Gary Lockwood as John Praiser, an American intelligence officer, Deborah White, Robert Hoy, Patrick Parkhurst and Terry Kiser.